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Finnair flights from London to Detroit Metropolitan Wayne County Airport (LON - DTW)

LON — DTW
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from London to Detroit on Finnair typically fly into Detroit Metropolitan Wayne County and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to Detroit in 2025

Find detailed information about Finnair flights from London to Detroit. Explore the options provided by Finnair to plan your journey from London to Detroit. Data last updated 24 October 2025.

Return from

£610

Popular in

August

Cheapest in

March

Average price (all airlines)

£786
Finnair
  • Finnair
  • 5/12-12/12
  • 3 total stops
  • 28h 15m total
  • London to Detroit
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Highest demand for flights from London to Detroit Metropolitan Wayne County; 5% potential price increase.
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Best time to find cheap flights from London to Detroit Metropolitan Wayne County; 1% potential price drop.
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Average price for all London to Detroit Metropolitan Wayne County flights (one-way and round-trip).
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  • How do most travelers feel about Finnair?

    The general consensus from 1,333 Cheapflights users is that Finnair is a 7.6/10. Select your travel dates above for updated prices on flights from London to Detroit Metropolitan Wayne County Airport (LON-DTW).

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Best Finnair flights from London to Detroit
Discover carefully curated Finnair flight deals from London to Detroit that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 October 2025.

Fri 5/1213:10LHR - DTW
1 stop15h 11mFinnair
Fri 12/1212:56DTW - LHR
2 stops13h 04mFinnair
Deal found 23/10£610

Travel insights for Finnair flights from London to Detroit

Get recent, data-driven insights about Finnair flights from London to Detroit including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to Detroit Metropolitan Wayne County Airport with Finnair?

Use this chart to determine the optimal time to book a return flight from London to Detroit. Price data was last updated on 17 October 2025.

Booking with Finnair 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Detroit Metropolitan Wayne County Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London to Detroit Metropolitan Wayne County Airport with Finnair?

Currently, the most affordable month to book a Finnair flight from London to Detroit Metropolitan Wayne County Airport in September, with an average price of £487. Conversely, traveling with Finnair from London to Detroit Metropolitan Wayne County Airport in August will be the most expensive, with an average cost of £718. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in Detroit by month

Plan your trip to Detroit by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Detroit Metropolitan Wayne County Airport ranges from 46.0 - 79.0 inches per month. August is typically the wettest month, when rainfall can reach 79.0 mm. January is typically the driest time to visit Detroit Metropolitan Wayne County Airport when rainfall is around 46.0 mm.

Temperature in Detroit by month

Plan your trip to Detroit by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Detroit Metropolitan Wayne County Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -4.0 C).

Best time to book a flight from London to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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Fly from London to Detroit on another airline

Consider alternative airlines that service the Detroit area. Flight routes are based on user searches made on Cheapflights and were last updated on 24 October 2025.
Virgin Atlantic flights from London to Detroit Metropolitan Wayne County

See what others are saying about Finnair

Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 24 October 2025.
Finnair
7.6
Good
1,333 reviews
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Overview

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Food

6.7

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